Today’s reading is kind of a nice break, although not entirely free of awfulness, it’s mostly mild class-ism with the priests and feast days. Although we have abandoned the blood sacrifices now–I believe initially because there was no temple nor tabernacle–holidays remain an important cultural tradition. I think marking the passing of the year–or as NDT says, noting the Earth’s relative position to the Sun–is a nice thing religion has provided humans.
If you are interested, looks to me like Passover is March 31, kind of far from Easter this year which is April 16.